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Rolling resistance on tyres

  • 19-11-2018 6:39pm
    #1
    Chippy01
    Registered Users, Registered Users 2 Posts: 627 ✭✭✭


    Any tyre gurus here that can explain in easy terms the difference in rolling resistance grades on the Euro Tyre Label?
    I know that A is supposed to be the best for fuel economy, and G is for the worst, that part is easy. What I would like to know is how much worse is one grade from the next.

    Hybrid or EV drivers should be chasing grade A rolling resistant tyres to maximise fuel efficiency, but how detrimental from grade A are the other grades?

    I hope I've worded the question correctly.


Comments

  • #2
    unkel
    Registered Users, Registered Users 2 Posts: 66,132 ✭✭✭✭unkel
    Chauffe, Marcel, chauffe!


    Chippy01 wrote: »
    EV drivers should be chasing grade A rolling resistant tyres to maximise fuel efficiency

    A lot of EV drivers (myself included) would disagree.

    I will change my A rated Michelin tyres for tyres that have more grip whenever the time to change comes. This will not be good for efficiency / range, but I prefer the grip (acceleration)!

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  • #3
    KCross
    Registered Users, Registered Users 2 Posts: 12,186 ✭✭✭✭KCross


    The difference in range between A and B is going to be miniscule. I doubt you'd even notice.

    I'd be interested in more grip and less noise than rolling resistance.


  • #4
    creedp
    Registered Users, Registered Users 2 Posts: 5,965 ✭✭✭creedp


    Anyone run winter tyres on their EV more specifically an L30? Did it have an perceptible impact on range? I live on a rural back road with a steep incline up to the house and anytime we get a half decent covering of snow the car fails to climb the hill on summer tyres. Which is why I got a set of winters on steels for the ICE. In any case its not such a big deal with the ICE as I can just park at bottom of hill and walk the rest of the way but it would be a pain with the Leaf which requires a home charge every day!

    I currently have Michelin Energy on the back and Nexen ND Blue on the front but all will require changing soon especially with the current inclement weather.

    I was looking at a number of winter tyres and the best seem to have a C rating for rolling resistance and an A / B rating for wet grip. Any view on whether these would reduce the range by much ... its already bad enough in this weather.


  • #5
    Stealthirl
    Registered Users, Registered Users 2 Posts: 1,595 ✭✭✭Stealthirl


    creedp wrote: »
    Anyone run winter tyres on their EV more specifically an L30?

    Not much help to you but i can let you know how i get on when my Continental TS 860's arrive next week


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